JPS52123839A - Signal expander - Google Patents

Signal expander

Info

Publication number
JPS52123839A
JPS52123839A JP4029676A JP4029676A JPS52123839A JP S52123839 A JPS52123839 A JP S52123839A JP 4029676 A JP4029676 A JP 4029676A JP 4029676 A JP4029676 A JP 4029676A JP S52123839 A JPS52123839 A JP S52123839A
Authority
JP
Japan
Prior art keywords
signal expander
byte
modes
processing unit
extending
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP4029676A
Other languages
Japanese (ja)
Inventor
Hideo Maejima
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP4029676A priority Critical patent/JPS52123839A/en
Publication of JPS52123839A publication Critical patent/JPS52123839A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To obtain the data processing unit which is suitable to the micro computer by extending the byte address to 2-byte utilizing that the small capacity register group has modes such as a output prohibition and a data passing.
JP4029676A 1976-04-12 1976-04-12 Signal expander Pending JPS52123839A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4029676A JPS52123839A (en) 1976-04-12 1976-04-12 Signal expander

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4029676A JPS52123839A (en) 1976-04-12 1976-04-12 Signal expander

Publications (1)

Publication Number Publication Date
JPS52123839A true JPS52123839A (en) 1977-10-18

Family

ID=12576636

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4029676A Pending JPS52123839A (en) 1976-04-12 1976-04-12 Signal expander

Country Status (1)

Country Link
JP (1) JPS52123839A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63238626A (en) * 1987-03-26 1988-10-04 Nec Corp Address calculation adding device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63238626A (en) * 1987-03-26 1988-10-04 Nec Corp Address calculation adding device

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